55961694 has 24 divisors (see below), whose sum is σ = 121957992. Its totient is φ = 18545040.

The previous prime is 55961641. The next prime is 55961699. The reversal of 55961694 is 49616955.

It is a happy number.

55961694 is a `hidden beast` number, since 559 + 6 + 1 + 6 + 94 = 666.

It is a super-2 number, since 2×55961694² = 6263422390699272, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55961699) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5872 + ... + 12099.

It is an arithmetic number, because the mean of its divisors is an integer number (5081583).

Almost surely, 2^55961694 is an apocalyptic number.

55961694 is an abundant number, since it is smaller than the sum of its proper divisors (65996298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55961694 is a wasteful number, since it uses less digits than its factorization.

55961694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18152 (or 18149 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 55961694 is about 7480.7549084300. The cubic root of 55961694 is about 382.4989824399.

The spelling of 55961694 in words is "fifty-five million, nine hundred sixty-one thousand, six hundred ninety-four".